A176319 - OEIS

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A176319

Decimal expansion of (5+sqrt(30))/2.

5, 2, 3, 8, 6, 1, 2, 7, 8, 7, 5, 2, 5, 8, 3, 0, 5, 6, 7, 2, 8, 4, 8, 4, 8, 9, 1, 4, 0, 0, 4, 0, 1, 0, 6, 6, 9, 7, 6, 3, 7, 2, 3, 4, 7, 4, 9, 8, 9, 9, 1, 6, 2, 7, 1, 1, 3, 4, 4, 7, 2, 2, 4, 8, 6, 6, 2, 4, 6, 6, 3, 8, 5, 6, 1, 3, 6, 1, 3, 6, 6, 9, 0, 0, 4, 2, 9, 2, 1, 8, 0, 8, 1, 9, 3, 5, 3, 1, 2, 8, 8, 2, 3, 6, 3

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OFFSET

1,1

COMMENTS

Continued fraction expansion of (5+sqrt(30))/2 is A010710 preceded by 5.

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..1000

EXAMPLE

(5+sqrt(30))/2 = 5.23861278752583056728...

MAPLE

evalf( (5+sqrt(30))/2, 120); # G. C. Greubel, Nov 26 2019

MATHEMATICA

RealDigits[(5+Sqrt[30])/2, 10, 120][[1]] (* Harvey P. Dale, Apr 24 2011 *)

PROG

(PARI) default(realprecision, 120); (5+sqrt(30))/2 \\ G. C. Greubel, Nov 26 2019

(Magma) SetDefaultRealField(RealField(120)); (5 + Sqrt(30))/2; // G. C. Greubel, Nov 26 2019

(Sage) numerical_approx((5+sqrt(30))/2, digits=120) # G. C. Greubel, Nov 26 2019

CROSSREFS

Cf. A010485 (decimal expansion of sqrt(30)), A010710 (repeat 4, 5).

Sequence in context: A353617 A133746 A374957 * A261026 A160080 A026247

Adjacent sequences: A176316 A176317 A176318 * A176320 A176321 A176322

KEYWORD

cons,nonn

AUTHOR

Klaus Brockhaus, Apr 15 2010

STATUS

approved